Supporting information for Microwave-assisted hydrothermal synthesis of UV-emitting carbon dots from tannic acid Julin Joseph, a Aji A. Anappara a* Department of Physics, NIT Calicut, Kerala, India. Reference KSV (M -1 ) Detection limit Selectivity J. Mater. Chem., 2009, 19, 7347-7353 4.8 ppb High Adv. Funct. Mater., 2009, 19, 905-917. 1.09×10 5 0.2 ppm High Macromol. Rapid Commun., 2010, 31, 834-839. 9.09×10 3 1 ppm High Chem. Commun., 2011, 47, 10046-10048. 2100 Low J. Photochem. Photobiol. A., 2011, 217, 356-362. 5×10 4 2.3 ppb Low ACS Appl. Mater. Interfaces., 2011, 3, 1245-1253. 5.7×10 3 70 ppb High Inorg.Chem., 2011, 50, 1506-1512. 1×10 5 Low Chem. Commun., 2012, 48, 7167-7169. 2.5×10 5 0.4 ppm Low J. Mater. Chem., 2012, 22, 11574-11582. 3.04×10 4 23 ppb Moderate Chem. Commun., 2012, 48, 5007-5009. 9.9×10 4 3-300 ppb Low Angew. Chem. Int. Ed., 2013, 52, 2881 -2885. 3.5×10 4 0.916 ppm High ACS Appl. Mater. Interfaces., 2013, 5, 672-679. 1.55×10 4 80.2 ppb Moderate Chem. Commun., 2013, 49, 4764-4766. 1.9×10 4 High J. Am. Chem. Soc., 2013, 135, 17310-17313. 7.8×10 4 1 ppm High J. Org. Chem., 2013, 78, 1306-1310. 3.8×10 4 High Chem. Commun., 2014, 50, 6031-6034. 5.28×10 4 Moderate ACS Appl. Mater. Interfaces., 2014, 6, 10722-10728. 1.32×10 5 125 ppb High Nanoscale., 2015,7, 1872-1878 2.850×10 4 0.068 ppm Moderat Anal Methods., 2013,5, 6228-6233. 3.3× 10 -1 0.229 ppm High RSC Adv., 2014, 4, 42066-42070. 3.3× 10 -1 0.50 ppm High J. Phys. Chem C., 2015, 119, 13138-13143. 0.00229 ppm Moderate RSC. Adv., 2014, 4, 31994-31999. 75.6 ppb Moderate J. Mater. Chem. A., 2016, 4, 4161-4171. 3.18×10 4 0.05 ppm High J. Photochem.. Photobiol B., 2016, 162, 1-13. 9.68 × 10 6 0.19ppm High TableS1. List of different kinds of fluorophores used for picric acid detection. Electronic Supplementary Material (ESI) for New Journal of Chemistry. This journal is © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2016